George St. Geegland and Gil Faizon, who bear a curious resemblance to the comedians John Mulaney and Nick Kroll, are two Upper West Side alter kakers partial to turtlenecks, bra-sniffing, and the œuvre of Alan Alda. For a time, they hosted a prank series called “Too Much Tuna” on Comedy Central’s “Kroll Show.” Now they’re bringing their skeezy-nebbish antics to Broadway, in “Oh, Hello” (starting previews Sept. 23, at the Lyceum), directed by Alex Timbers. “It’s a victory lap for us,” George said recently.